I used to be able to record presentations easily, getting a nice wavpack file that could be converted to ogg or whatever later.

However now when I try to record, I get a recording file of the right length, but with no sound in it.

I've tried a variety of different formats, and all seem to give the same result.

I tried both through the built in microphone, and with a little olympus microphone hooked in via the subpack on the "line in" jack. Yes, I did change the recording source in recording settings.

I've also tried a handful of different bitrates, though far from all of them, to no avail.

I'm recording mono, not stereo.

I tried tapping the olympus microphone during a recording, expecting that should produce some sound even if the recording level was very low. I also played back the resulting recording with the volume cranked - but all I heard was a little bit of hiss.

Is my X5 just broken? Or am I doing something wrong?

BTW, when I try to record something, I'm pushing play, then record, then letting it record a while. Then I push play, and pull up on the hold button 3 times to leave the recording screen.

Oh, I'm using rockbox r13968-070724. I'm hesitant to upgrade since it used to work, but if folks feel that should fix it...

It looks prettier, and probably has more options, but my recording still seems to be messed up.

It is a little bit different now in how it records though - rather than sounding like a very faint hiss, it sounds kind of like putting your ear to a paper towel tube or seashell - with the mic or line in.